Mount Index, Mountain summit in King County, United States.
Mount Index rises to an elevation of 5,476 feet in the North Cascades region, featuring granite formations and dense forest surroundings.
The mountain's geological composition includes igneous rock that formed more than 140 million years ago at the bottom of the ocean.
The granite from Mount Index contributed to the construction of notable buildings in Seattle, including the Smith Tower.
Accessing Mount Index requires technical climbing skills, proper gear, and navigation through three potential routes including the Proctor Creek drainage.
The granite found throughout Mount Index contains specific mineral compositions that make it particularly suitable for rock climbing activities.
Location: Washington
Location: King County
GPS coordinates: 47.77448,-121.58070
Latest update: March 17, 2025 20:08
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